User's Guide

Appliance Replacement Considerations
Replacing an appliance should be done in such a way that no data is lost during the transition.
Following these recommendations will help prevent data loss:
• Scheduled jobs should be included when backing up an appliance before synchronization. This will
save you valuable time when restoring the backup on a new appliance. Unless you have backed up
your scheduled jobs, you will have to recreate them on the new appliance.
• Hold onto the old appliance until you have retrieved all important data from the appliance's hard
drive. Forensic data and other important data need to be backed up from the old appliance
especially if you need the data for auditing purposes.
• You should install the new appliance on a lab network not connected to the LAN/WAN. Do not place
the appliance on the WAN until you have restored the backed up configuration. The Sensors will
connect to the appliance and your network tree will not be set up. Once connected to a lab network,
you can either restore the primary's configuration file, or restore the configuration from a secondary
appliance to the primary appliance. If the configuration is restored from the secondary appliance,
you should then change the IP address of the new appliance to the one for the old appliance, reboot,
and install the new appliance on the network.
• Once the new appliance is on the network, back up forensic data from the secondary appliance as
required.
• ADSP restores the configuration long before the screen indicates that the process is complete.
Executing a ping to the appliance will let you know exactly when the system is up. Once you receive
a response, you can then log back in.
Configuration Clear
Use the Configuration Clear screen to clear configurations for the various features of the Extreme
AirDefense system.
Extreme AirDefense provides a comprehensive set of options that are used to have granular control on
the data that can be retained or cleared. Extreme AirDefense configuration settings and the data that is
stored on the physical Extreme AirDefense instance can be broadly classified into the following broad
categories:
• Appliance's Network Configuration
• Extreme AirDefense System Configuration
Configuration
Appliance Replacement Considerations
Extreme AirDefense User Guide for version 10.5. 297